# Chemistry

What mass, in grams, of oxygen gas (O2) is contained in a 10.5 liter tank at 27.3 degrees Celsius and 1.83 atmospheres

Trouble figuring out what formula to use to get the answer...want to understand how to get the right answer

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1. Use PV = nRT and solve for n. Then n = grams/molar mass. Solve for grams.

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